RTÉ News has learned that Taoiseach Bertie Ahern may have bought his home from an individual who attended the controversial Manchester dinner at which he received £8,000 while Minister for Finance.
Documents suggest that businessman Micheál Wall may have sold Mr Ahern his house in Drumcondra three years after the dinner.
Fine Gael called on the Taoiseach to come to the Dáil tomorrow to explain the situation, which Labour described as 'hugely embarrassing' for the Tánaiste.
Fine Gael environment spokesperson Fergus O'Dowd said it was amazing that the Taoiseach did not name Mr Wall as an attendee at the dinner in Manchester.
Mr O'Dowd described the development as 'truly bizarre'.
This morning in the Dáil, Mr Ahern had said it was not possible to give a full list of those who had attended the dinner, as Michael McDowell had said he might.
He told the Dáil he did not intend 'rehashing questions' on his personal finances endlessly.
He was speaking at this morning's Leaders' Questions where the Opposition attempted again to press him on the matter.
Fine Gael leader, Enda Kenny said he found parts of Mr Ahern's explanation in the Dáil yesterday incredible.
Labour leader Pat Rabbitte asked if it was the case that political donations had to be put into a political account and used solely for political purposes.
While the Green Party leader, Trevor Sargent, accused Mr Ahern of misleading the Dáil in 1999 when he said he had never received an unorthodox payment.
Mr Sargent was forced to withdraw a comment that the Taoiseach had lied.
Mr Ahern repeated that he had made an error of judgement but rejected Mr Sargent's allegation. He said that if he could get any more information on this, he would give it to the Mahon Tribunal.
The Taoiseach also said again that he is not beholden to anybody and nobody from the Manchester meeting was appointed to a State board.
Mr Ahern stonewalled Opposition attempts to get more information on his bank accounts and the payments made to him with the result that Leaders' Questions was shorter than usual.
Ahern made no breach of law: Martin
Speaking earlier on RTÉ Radio's Morning Ireland, the Minister for Enterprise, Trade and Employment, Micheál Martin, said the fundamental point made by the Taoiseach was that there was an error of judgement involved although not a breach of any law.
Also on the programme, Fergus O'Dowd, the Fine Gael Spokesman on the Environment, said that the explanations given by the Taoiseach did not add up.
And Brendan Howlin, the Labour Party Spokesman on Justice, said yesterday's debate appeared to show that standards in public office had changed for the worse.
Last night, the Tánaiste said the controversy did not render Mr Ahern unfit for office, and said it would fly in the face of reason for the PDs to withdraw their support.
Mr McDowell was speaking after a meeting of the PDs' parliamentary party.
